Power source secondary protection method

A technology of secondary protection and power supply, applied in the direction of data processing power supply, etc., can solve the problem of inability to distinguish between occasional faults and repeated faults, and achieve the effect of instant protection of repeated faults, reducing the impact of occasional faults, and increasing fault monitoring.

Active Publication Date: 2015-07-22
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This protection cannot distinguish whether the fault is a sporadic fault or a repetitive fault

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power source secondary protection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0028] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0029] Refer to attached figure 1 , is a schematic flow chart of an embodiment of a power supply secondary protection method provided by the present invention.

[0030] Such as figure 1 As shown, the secondary protection method of the power supply includes the follo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a power source secondary protection method. The power source secondary protection method includes the steps that a power source is reset; the starting assignment of the total fault number is zero, and the starting assignment of the time is zero; the power source is started, first-time starting judgment is carried out, and whether the power source is successfully started within a first threshold value time or not is judged; if the power source is successfully started, fault scanning is carried out; if faults occur, the shut-off operation is executed, the total fault number pluses one, and fault scanning is continuously carried if the faults do not occur; if the power source is not successfully started, the shut-off operation is executed, and the total fault number pluses one; whether the total fault number at current is larger than a present total fault number threshold value or not is judged; if the total fault number at current is larger than the present total fault number threshold value, the locking state is started; if the total fault number at current is smaller than or equal to the present total fault number threshold value, a second threshold value time is delayed, and no processing is carried out; then starting judgment is carried out, and whether the power source is successfully started within a first threshold value time or not is judged; if the power source is not successfully started within the first threshold value time, the locking state is started; if the power source is successfully started within the first threshold value time, whether the faults occur within a control period or not is judged; if the faults do not occur, fault scanning is continuously carried out; if the faults occur, the locking state is started.

Description

technical field [0001] The invention relates to the technical field of power supply control, in particular to a secondary protection method for a power supply. Background technique [0002] In power supply design, when a fault occurs (all kinds of input and output overvoltage, undervoltage, overcurrent and overtemperature protection, etc.), shutdown protection is usually used. After the fault state is eliminated, recovery restart or "lockout" shutdown broken. In this protection method, it is impossible to judge whether it is a short-term repeated fault or an occasional fault, and a unified protection method for the fault cannot achieve a good protection effect. [0003] The existing secondary protection method focuses on realizing reliable protection for a single fault. Usually, an additional protection mechanism is added on the basis of the basic fault protection function circuit, so that when the first protection action does not operate, through the additional The protec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/28
Inventor 曾理张顺彪王富光陈修林王三虎魏晓慧
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap